r/COVID19 is a subreddit with 600k members. The most common kinds of discussions are news and solution requests, and the community frequently discusses covid, vaccine, covid 19, long covid, and vaccination.
In December 2019, SARS-CoV-2 emerged in the city of Wuhan, China. This subreddit seeks to facilitate scientific discussion of this potential global public health threat. We have very strict rules. Please make sure to read them before posting or commenting. Moderators may lock or remove comments or posts at their discretion.
Popular Themes in r/COVID19
#1
News
: "COVID-19-like "HMPV virus" causes panic in China"
50 posts
#2
Solution Requests
: "Robust antiviral humoral immunity induced by JN.1 monovalent mRNA vaccines against a broad range of SARS-CoV-2 Omicron subvariants including JN.1, KP.3.1.1 and XEC"
1 post
Popular Topics in r/COVID19
#1
Covid
: "Covid-19-like "HMPV virus" causes panic in China"
294 posts
#2
Vaccine
: "Moderna Announces Updated COVID-19 Vaccine Against LP.8.1 Variant Generates Strong Immune Response in Humans"
107 posts
#3
Covid 19
: "COVID-19 mRNA Vaccination and 4-Year All-Cause Mortality Among Adults Aged 18 to 59 Years in France"
52 posts
#4
Long Covid
: "Incidence of Long Covid Following Reinfection with COVID-19"
48 posts
#5
Vaccination
: "COVID-19 mRNA Vaccination and 4-Year All-Cause Mortality Among Adults Aged 18 to 59 Years in France"
24 posts
#6
Research
: "Long-persisting SARS-CoV-2 spike-specific CD4+ T cells associated with mild disease and increased cytotoxicity post COVID-19"
24 posts
#7
Sars Cov 2
: "Evolution of SARS-CoV-2 T cell responses as a function of multiple COVID-19 boosters"
17 posts
#8
Symptoms
: "The Relationship Between Long Covid Symptoms and Vaccination Status in COVID-19 Survivors"
16 posts
#9
Mrna
: "Intratumoral administration of Mrna COVID-19 vaccine delays melanoma growth in mice"
15 posts
#10
Lab Leak
: "Covid.gov changed to—Lab Leak: The True Origins of Covid-19."
13 posts
Flair Used in r/COVID19
#1
Academic Report
: "For Adults Presenting to the Emergency Department, Mortality Is 7.9% for COVID-19 (Omicron), 6.0% for RSV, and 2.5% for Influenza"
71 posts
#2
General
: "Why covid-19 is “a vascular disease masquerading as a respiratory one”"
37 posts
#3
Preprint
: "Repeated COVID-19 vaccine boosters elicit variant-specific memory B cells in humans"
34 posts
#4
Vaccine Research
: "Stanford Medicine study shows why mRNA-based COVID-19 vaccines can cause myocarditis"
16 posts
#5
Observational Study
: "Ophthalmic complications associated with COVID-19: a large US national database analysis"
16 posts
#6
Academic Comment
: "Why scientists are rethinking the immune effects of SARS-CoV-2"
8 posts
#7
Press Release
: "Moderna Announces Updated COVID-19 Vaccine Against LP.8.1 Variant Generates Strong Immune Response in Humans"
4 posts
#8
Clinical
: "Circulating Microclots Are Structurally Associated With Neutrophil Extracellular Traps and Their Amounts Are Elevated in Long COVID Patients"
4 posts
#9
PPE/Mask Research
: "The role of masks and respirators in preventing respiratory infections in healthcare and community settings"
3 posts
#10
Epidemiology
: "COVID-19 No Longer the Leading Cause of Death from Infectious Diseases"
3 posts
Member Growth in r/COVID19
Yearly
-4796 members(-0.8%)
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About
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This page gives a focused view of r/COVID19, including current member size, discussion patterns, product reviews, and related communities to explore.
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Last updated: June 14, 2026